Tire Pressure Monitor Sensor TPMS Activation Tool EL-50448 Orange TPMS OEC-T5, GM TPMS Relearn Reset Sensor Activation Tool, Tire Pressure Monitor TPM TPS Relearn Tool for GM Series Vehicle

【EL-50448 TPMS Relearn Tool】: For GM series vehicles equipped with tire pressure monitoring system, a "sensor relearn procedure" must be performed after tire rotations, remote control door lock receiver module replacement or tire pressure sensor replacement. This relearn procedure can be performed by using special tool EL-50448. 【How To Use】: Before using this TMS relearn tool & TPS reset tool, make sure your car is in the TPMS learn mode. Hold the tool against the sidewall of the tire, near the valve core. Press learn button while holding the tool against the tire sidewall until hearing horn sound from the car.